From the time the Third Army became operational on August 1, 1944, until the guns fell silent on May 8, 1945, Lt. Gen. George S. Patton's troops covered more ground and took more enemy prisoners than any other Allied army in northwest Europe. Brig. Gen. Otto P. Weyland's XIX Tactical Air Command (TAC) provided air support every step of the way. Their combined success is something of an anomaly; air-ground relationships are notoriously confrontational and plagued with interservice competition. How did Patton and Weyland work together to achieve such astounding success?